LYOCELL MATERIAL FOR CIGARETTE FILTER AND PREPARATION METHOD THEREFOR

摘要

The present invention relates to a method for preparing a lyocell material for a cigarette filter comprising the steps of: (S1) spinning a lyocell spinning dope comprising 8 13 wt% of cellulose pulp and 87 92 wt% of an N methylmorpholine N oxide (NMMO) aqueous solution; (S2) obtaining a lyocell multifilament by solidifying the lyocell spinning dope spun in step (S1); (S3) washing the lyocell multifilament obtained in step (S2); (S4) oil treating the lyocell multifilament washed in step (S3); and (S5) obtaining crimped tow having 30 40 crimps per inch provided therein by applying steam and pressure to the lyocell multifilament obtained in step (S4).